Commercial Electric Water Heater Use and Care Guide • 19
With the installaon steps completed,
you may adjust the water heater’s
temperature seng if desired.
1
Set the thermostat(s) to
desired temperature. The
thermostat(s) on this water
heater have been factory set to
approximately 140°F (60°C) to reduce
the risk of scalding. You may wish to set
a higher temperature to provide hot
water for automac dishwashers or
laundry machines, to provide more hot
water capacity, and to reduce bacterial
growth. Higher tank temperatures
(140°F, 60°C) kill bacteria that cause a
condion known as “smelly water”
and can reduce the levels of bacteria
that cause water-borne diseases.
140°
If you increase the water heater’s
temperature seng, install
Thermostac Mixing Valve(s) to reduce
the risk of scalding.
Figure 20 - Adjust Thermostatic Mixing Valves
to 120°F (49°C) or lower.
• Be sure the electrical power to the
water heater is turned OFF at the
circuit breaker panel (or remove the
circuit’s fuses).
• Open the electrical juncon box and
remove the lower thermostat access
panel. Do not remove the plasc
personnel protectors covering the
thermostats.
• Using a at p screwdriver, rotate
the adjusng knob to the desired
temperature seng (NOTE: It is
not necessary to adjust the upper
thermostat for a dual element unit.
However, if it is adjusted above the
factory set point 140°F (60°C) it is
recommended that it not be set
higher than the lower thermostat
seng).
• Fold the insulaon back in place and
replace the access panels.
2
Turn the electric power back
on.
3
Wait for the water to heat up.
It may take several hours for a
tank of cold water to heat up.
If you have no hot water aer two
hours, refer to the Troubleshoong
Secon (see page 21).
4
Check water temperature at
several points of use in the
plumbing system (for
example, bathtub faucet, shower, or
lavatory sink) and adjust the
Thermostac Mixing Valves as needed.
If you aren’t sure how to adjust the
Thermostac Mixing Valve sengs, or
aren’t sure if you have Thermostac
Mixing Valves, contact a qualied
person.
INSTALLATION
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